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Vol. 134, Issue 11, November 2011, pp.120-131




Fabrication of Polyaniline-ZnO Nanocomposite Gas Sensor


a S. L. PATIL, a M. A. CHOUGULE, a S. G. PAWAR, b Shashwati SEN, c A. V. MOHOLKAR, d J. H. KIM and a* V. B. PATIL

a* Materials Research Laboratory, School of Physical Sciences,

Solapur University, Solapur -413255, (MS), India

b Crystal Technology Section, Technical Physics Division, BARC, Mumbai, India

c Department of Physics, Shivaji University, Kolhapur, M.S., India

d Department of Materials Science and Engineering, Chonnam National University, South Korea

Tel.:-91-2172744770, fax: +91-2172744770

*E-mail: drvbpatil@gmail.com



Received: 20 October 2011   /Accepted: 21 November 2011   /Published: 29 November 2011

Handbook of Laboaratory Measurements book


Abstract: In the present investigation, we report on the performance of a room temperature ammonia gas sensor based on Polyaniline-ZnO nanocomposite. The nanocomposite film was fabricated using spin coating method on glass substrate. Polyaniline-ZnO nanocomposites were characterized for their structural as well as surface morphologies and ammonia response was studied. The structural (XRD) analysis showed formation of nanocrystalline ZnO while polyaniline exhibited amorphous nature. Morphological analysis using scanning electron microscopy (SEM) of the nanocomposite reveled uniform distribution of ZnO nanoparticles in the PANi matrix. The nanocomposite showed the maximum response of ~14 % upon expose to 100 ppm NH3 at room temperature.


Keywords: PANi-ZnO thin films, NH3 sensor, Response, Selectivity, Response time, Recovery time


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